What is the maximum capcity of a high pressure oxygen cylinder?

A standard oxygen cylinder that contains 244 cf at 2200 psi and 700 (6.5 m 3 at 15200 kPa at 20 0C) will contain 122 cf (3.25 m3) when the pressure has dropped to 1100 psi at 700F (7600 kPa at 20 0 C). In the dissolved acetylene cylinder, the relationship between pressure and remaining acetylene content is less precise.